void doStrokeWithCTM(CGContextRef context)
{
CGContextTranslateCTM(context, 150., 180.);
CGContextSetLineWidth(context, 10);
// Draw ellipse 1 with a uniform stroke.
CGContextSaveGState(context);
// Scale the CTM so the circular arc will be elliptical.
CGContextScaleCTM(context, 2, 1);
CGContextBeginPath(context);
// Create an arc that is a circle.
CGContextAddArc(context, 0., 0., 45., 0., 2*M_PI, 0);
// Restore the context parameters prior to stroking the path.
// CGContextRestoreGState does not affect the path in the context.
CGContextRestoreGState(context);
CGContextStrokePath(context);
// *** was 0, -120
CGContextTranslateCTM(context, 220., 0.);
// Draw ellipse 2 with non-uniform stroke.
CGContextSaveGState(context);
// Scale the CTM so the circular arc will be elliptical.
CGContextScaleCTM(context, 2, 1);
CGContextBeginPath(context);
// Create an arc that is a circle.
CGContextAddArc(context, 0., 0., 45., 0., 2*M_PI, 0);
// Stroke the path with the scaled coordinate system in effect.
CGContextStrokePath(context);
CGContextRestoreGState(context);
}
void PDFDocumentImage::draw(GraphicsContext* context, const FloatRect& dstRect, const FloatRect& srcRect, ColorSpace, CompositeOperator op, BlendMode)
{
if (!m_document || m_currentPage == -1)
return;
{
GraphicsContextStateSaver stateSaver(*context);
context->setCompositeOperation(op);
float hScale = dstRect.width() / srcRect.width();
float vScale = dstRect.height() / srcRect.height();
// Scale and translate so the document is rendered in the correct location,
// including accounting for the fact that a GraphicsContext is always flipped
// and doing appropriate flipping.
CGContextTranslateCTM(context->platformContext(), dstRect.x() - srcRect.x() * hScale, dstRect.y() - srcRect.y() * vScale);
CGContextScaleCTM(context->platformContext(), hScale, vScale);
CGContextScaleCTM(context->platformContext(), 1, -1);
CGContextTranslateCTM(context->platformContext(), 0, -srcRect.height());
CGContextClipToRect(context->platformContext(), CGRectIntegral(srcRect));
// Rotate translate image into position according to doc properties.
adjustCTM(context);
CGContextTranslateCTM(context->platformContext(), -m_mediaBox.x(), -m_mediaBox.y());
CGContextDrawPDFPage(context->platformContext(), CGPDFDocumentGetPage(m_document, m_currentPage + 1));
}
if (imageObserver())
imageObserver()->didDraw(this);
}
void PDFDocumentImage::draw(GraphicsContext* context, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator op)
{
if (!m_document || m_currentPage == -1)
return;
context->save();
context->setCompositeOperation(op);
float hScale = dstRect.width() / srcRect.width();
float vScale = dstRect.height() / srcRect.height();
// Scale and translate so the document is rendered in the correct location,
// including accounting for the fact that a GraphicsContext is always flipped
// and doing appropriate flipping.
CGContextTranslateCTM(context->platformContext(), dstRect.x() - srcRect.x() * hScale, dstRect.y() - srcRect.y() * vScale);
CGContextScaleCTM(context->platformContext(), hScale, vScale);
CGContextScaleCTM(context->platformContext(), 1, -1);
CGContextTranslateCTM(context->platformContext(), 0, -srcRect.height());
CGContextClipToRect(context->platformContext(), CGRectIntegral(srcRect));
// Rotate translate image into position according to doc properties.
adjustCTM(context);
// Media box may have non-zero origin which we ignore. Pass 1 for the page number.
CGContextDrawPDFDocument(context->platformContext(), FloatRect(FloatPoint(), m_mediaBox.size()),
m_document, m_currentPage + 1);
context->restore();
if (imageObserver())
imageObserver()->didDraw(this);
}
void MacVegaPrinterListener::DrawEllipse(const OpRect& rect, UINT32 width)
{
CGRect cgrect = CGRectMake(rect.x, rect.y, rect.width, rect.height);
cgrect.origin.y = m_winHeight - cgrect.origin.y - cgrect.size.height;
float cx = cgrect.origin.x + (cgrect.size.width / 2);
float cy = cgrect.origin.y + (cgrect.size.height / 2);
float radius = cgrect.size.width / 2;
if(width != 1)
{
CGContextSetLineWidth(m_ctx, width);
}
if(cgrect.size.width != cgrect.size.height)
{
cy = cy * cgrect.size.width / cgrect.size.height;
CGContextScaleCTM(m_ctx, 1.0, cgrect.size.height/cgrect.size.width);
}
CGContextAddArc(m_ctx, cx, cy, radius, 0, 2*M_PI, 0);
CGContextStrokePath(m_ctx);
if(width != 1)
{
CGContextSetLineWidth(m_ctx, 1);
}
if(cgrect.size.width != cgrect.size.height)
{
CGContextScaleCTM(m_ctx, 1.0, cgrect.size.width/cgrect.size.height);
}
}
//-----------------------------------------------------------------------------
CGContextRef CGBitmap::createCGContext ()
{
CGContextRef context = 0;
if (bits == 0)
{
allocBits ();
if (imageSource)
getCGImage ();
if (image)
{
context = createCGContext ();
if (context)
{
CGContextScaleCTM (context, 1, -1);
CGContextDrawImage (context, CGRectMake (0, -size.y, size.x, size.y), image);
CGContextScaleCTM (context, 1, -1);
return context;
}
}
}
if (bits)
{
CGBitmapInfo bitmapInfo = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Big;
context = CGBitmapContextCreate (bits,
size.x,
size.y,
8,
getBytesPerRow (),
GetCGColorSpace (),
bitmapInfo);
CGContextTranslateCTM (context, 0, (CGFloat)size.y);
CGContextScaleCTM (context, 1, -1);
}
return context;
}
void ImageBuffer::clip(GraphicsContext* contextToClip, const FloatRect& rect) const
{
CGContextRef platformContextToClip = contextToClip->platformContext();
RetainPtr<CGImageRef> image(AdoptCF, copyNativeImage(DontCopyBackingStore));
CGContextTranslateCTM(platformContextToClip, rect.x(), rect.y() + rect.height());
CGContextScaleCTM(platformContextToClip, 1, -1);
CGContextClipToMask(platformContextToClip, FloatRect(FloatPoint(), rect.size()), image.get());
CGContextScaleCTM(platformContextToClip, 1, -1);
CGContextTranslateCTM(platformContextToClip, -rect.x(), -rect.y() - rect.height());
}
bool QMacPrintEnginePrivate::newPage_helper()
{
Q_Q(QMacPrintEngine);
Q_ASSERT(state == QPrinter::Active);
if (PMSessionError(session) != noErr) {
q->abort();
return false;
}
OSStatus status = shouldSuppressStatus() ? PMSessionBeginPageNoDialog(session, format, 0)
: PMSessionBeginPage(session, format, 0);
if(status != noErr) {
state = QPrinter::Error;
return false;
}
QRect page = q->property(QPrintEngine::PPK_PageRect).toRect();
QRect paper = q->property(QPrintEngine::PPK_PaperRect).toRect();
CGContextRef cgContext;
OSStatus err = noErr;
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4)
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) {
err = PMSessionGetCGGraphicsContext(session, &cgContext);
} else
#endif
{
#ifndef Q_OS_MAC64
err = PMSessionGetGraphicsContext(session, kPMGraphicsContextCoreGraphics,
reinterpret_cast<void **>(&cgContext));
#endif
}
if(err != noErr) {
qWarning("QMacPrintEngine::newPage: Cannot retrieve CoreGraphics context: %ld", long(err));
state = QPrinter::Error;
return false;
}
QCoreGraphicsPaintEngine *cgEngine = static_cast<QCoreGraphicsPaintEngine*>(paintEngine);
cgEngine->d_func()->hd = cgContext;
// Set the resolution as a scaling ration of 72 (the default).
CGContextScaleCTM(cgContext, 72 / resolution.hRes, 72 / resolution.vRes);
CGContextScaleCTM(cgContext, 1, -1);
CGContextTranslateCTM(cgContext, 0, -paper.height());
if (!fullPage)
CGContextTranslateCTM(cgContext, page.x() - paper.x(), page.y() - paper.y());
cgEngine->d_func()->orig_xform = CGContextGetCTM(cgContext);
cgEngine->d_func()->setClip(0);
cgEngine->state->dirtyFlags = QPaintEngine::AllDirty;
cgEngine->syncState();
return true;
}
void GraphicsContext::scale(const FloatSize& size)
{
if (paintingDisabled())
return;
CGContextScaleCTM(platformContext(), size.width(), size.height());
m_data->scale(size);
}
wxBitmap wxScreenDCImpl::DoGetAsBitmap(const wxRect *subrect) const
{
wxRect rect = subrect ? *subrect : wxRect(0, 0, m_width, m_height);
wxBitmap bmp(rect.GetSize(), 32);
#if !wxOSX_USE_IPHONE
CGRect srcRect = CGRectMake(rect.x, rect.y, rect.width, rect.height);
CGContextRef context = (CGContextRef)bmp.GetHBITMAP();
CGContextSaveGState(context);
CGContextTranslateCTM( context, 0, m_height );
CGContextScaleCTM( context, 1, -1 );
if ( subrect )
srcRect = CGRectOffset( srcRect, -subrect->x, -subrect->y ) ;
CGImageRef image = grabViaOpenGL(kCGNullDirectDisplay, srcRect);
wxASSERT_MSG(image, wxT("wxScreenDC::GetAsBitmap - unable to get screenshot."));
CGContextDrawImage(context, srcRect, image);
CGImageRelease(image);
CGContextRestoreGState(context);
#else
// TODO implement using UIGetScreenImage, CGImageCreateWithImageInRect, CGContextDrawImage
#endif
return bmp;
}
void ImageBuffer::clip(GraphicsContext* context, const FloatRect& rect) const
{
CGContextRef platformContext = context->platformContext();
RetainPtr<CGImageRef> image;
if (!m_accelerateRendering)
image.adoptCF(cgImage(m_size, m_data));
#if USE(IOSURFACE_CANVAS_BACKING_STORE)
else
image.adoptCF(wkIOSurfaceContextCreateImage(platformContext));
#endif
CGContextTranslateCTM(platformContext, rect.x(), rect.y() + rect.height());
CGContextScaleCTM(platformContext, 1, -1);
CGContextClipToMask(platformContext, FloatRect(FloatPoint(), rect.size()), image.get());
CGContextScaleCTM(platformContext, 1, -1);
CGContextTranslateCTM(platformContext, -rect.x(), -rect.y() - rect.height());
}
static void paintRepaintRectOverlay(CGContextRef context, WKImageRef image, WKArrayRef repaintRects)
{
WKSize imageSize = WKImageGetSize(image);
CGContextSaveGState(context);
// Using a transparency layer is easier than futzing with clipping.
CGContextBeginTransparencyLayer(context, 0);
// Flip the context.
CGContextScaleCTM(context, 1, -1);
CGContextTranslateCTM(context, 0, -imageSize.height);
CGContextSetRGBFillColor(context, 0, 0, 0, static_cast<CGFloat>(0.66));
CGContextFillRect(context, CGRectMake(0, 0, imageSize.width, imageSize.height));
// Clear the repaint rects.
size_t count = WKArrayGetSize(repaintRects);
for (size_t i = 0; i < count; ++i) {
WKRect rect = WKRectGetValue(static_cast<WKRectRef>(WKArrayGetItemAtIndex(repaintRects, i)));
CGRect cgRect = CGRectMake(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
CGContextClearRect(context, cgRect);
}
CGContextEndTransparencyLayer(context);
CGContextRestoreGState(context);
}
QNativeImage::QNativeImage(int width, int height, QImage::Format format, bool /* isTextBuffer */, QWidget *widget)
: image(width, height, format)
{
uint cgflags = kCGImageAlphaNoneSkipFirst;
switch (format) {
case QImage::Format_ARGB32:
cgflags = kCGImageAlphaFirst;
break;
case QImage::Format_ARGB32_Premultiplied:
case QImage::Format_ARGB8565_Premultiplied:
case QImage::Format_ARGB6666_Premultiplied:
case QImage::Format_ARGB8555_Premultiplied:
case QImage::Format_ARGB4444_Premultiplied:
cgflags = kCGImageAlphaPremultipliedFirst;
break;
default:
break;
}
#ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version
cgflags |= kCGBitmapByteOrder32Host;
#endif
cg = CGBitmapContextCreate(image.bits(), width, height, 8, image.bytesPerLine(),
QCoreGraphicsPaintEngine::macDisplayColorSpace(widget), cgflags);
CGContextTranslateCTM(cg, 0, height);
CGContextScaleCTM(cg, 1, -1);
Q_ASSERT(image.paintEngine()->type() == QPaintEngine::Raster);
static_cast<QRasterPaintEngine *>(image.paintEngine())->setCGContext(cg);
}
static
OSStatus HandleViewEvent(
EventHandlerCallRef inHandlerCallRef,
EventRef inEvent,
void *inUserData )
{
#pragma unused( inHandlerCallRef )
OSStatus err = eventNotHandledErr;
DrawContextStruct *context = inUserData;
verify_noerr( GetEventParameter(inEvent, kEventParamCGContextRef, typeCGContextRef, NULL, sizeof(CGContextRef), NULL, &context->cgContext) );
HIViewGetBounds(context->viewRef, &context->bounds);
CGContextTranslateCTM(context->cgContext, 0, context->bounds.size.height);
CGContextScaleCTM(context->cgContext, 1.0, -1.0);
switch ( GetEventKind( inEvent ) ) {
case kEventControlDraw:
{
// redraw the context
DrawWindow( context->windowRef );
break;
}
default:
break;
};
return err;
}
static pascal OSStatus IndicatorEventHandler(EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void *userData)
{
#pragma unused (inHandlerCallRef)
OSStatus err, result = eventNotHandledErr;
HIViewRef view = (HIViewRef) userData;
switch (GetEventClass(inEvent))
{
case kEventClassControl:
switch (GetEventKind(inEvent))
{
case kEventControlDraw:
CGContextRef ctx;
err = GetEventParameter(inEvent, kEventParamCGContextRef, typeCGContextRef, nil, sizeof(CGContextRef), nil, &ctx);
if (err == noErr)
{
HIRect bounds;
HIViewGetBounds(view, &bounds);
CGContextTranslateCTM(ctx, 0, bounds.size.height);
CGContextScaleCTM(ctx, 1.0, -1.0);
MusicBoxDrawIndicator(view, ctx);
result = noErr;
}
}
}
return result;
}
static void
_cairo_quartz_surface_release_dest_image(void *abstract_surface,
cairo_rectangle_int16_t *intersect_rect,
cairo_image_surface_t *image,
cairo_rectangle_int16_t *image_rect,
void *image_extra)
{
cairo_quartz_surface_t *surface = abstract_surface;
CGImageRef image_ref;
CGRect rect;
image_ref = create_image_from_surface (image, image_extra);
rect = CGRectMake (image_rect->x, image_rect->y, image_rect->width, image_rect->height);
if (surface->y_grows_down) {
CGContextSaveGState (surface->context);
CGContextTranslateCTM (surface->context, 0, image_rect->height + 2 * image_rect->y);
CGContextScaleCTM (surface->context, 1, -1);
}
CGContextDrawImage(surface->context, rect, image_ref);
CFRelease (image_ref);
if (surface->y_grows_down) {
CGContextRestoreGState (surface->context);
}
cairo_surface_destroy ((cairo_surface_t *)image);
free (image_extra);
}
bool wxMetaFile::Play(wxDC *dc)
{
if (!m_refData)
return false;
if (!dc->Ok() )
return false;
{
#if wxMAC_USE_CORE_GRAPHICS
QDPictRef cgPictRef = M_METAFILEDATA->m_qdPictRef ;
CGContextRef cg = ((wxMacCGContext*)(dc->GetGraphicContext()))->GetNativeContext() ;
CGRect bounds = QDPictGetBounds( cgPictRef ) ;
CGContextSaveGState(cg);
CGContextTranslateCTM(cg, 0 , bounds.size.width );
CGContextScaleCTM(cg, 1, -1);
QDPictDrawToCGContext( cg , bounds , cgPictRef ) ;
CGContextRestoreGState( cg ) ;
#else
PicHandle pict = (PicHandle) GetHMETAFILE() ;
wxMacPortSetter helper( dc ) ;
DrawPicture( pict , &(**pict).picFrame ) ;
#endif
}
return true;
}
void SkOSWindow::doPaint(void* ctx)
{
#if 0
this->update(NULL);
const SkBitmap& bm = this->getBitmap();
CGImageRef img = SkCreateCGImageRef(bm);
if (img) {
CGRect r = CGRectMake(0, 0, bm.width(), bm.height());
CGContextRef cg = reinterpret_cast<CGContextRef>(ctx);
CGContextSaveGState(cg);
CGContextTranslateCTM(cg, 0, r.size.height);
CGContextScaleCTM(cg, 1, -1);
CGContextDrawImage(cg, r, img);
CGContextRestoreGState(cg);
CGImageRelease(img);
}
#endif
}
wxBitmap wxScreenDCImpl::DoGetAsBitmap(const wxRect *subrect) const
{
CGRect srcRect = CGRectMake(0, 0, m_width, m_height);
if (subrect)
{
srcRect.origin.x = subrect->GetX();
srcRect.origin.y = subrect->GetY();
srcRect.size.width = subrect->GetWidth();
srcRect.size.height = subrect->GetHeight();
}
wxBitmap bmp = wxBitmap(srcRect.size.width, srcRect.size.height, 32);
#if wxOSX_USE_IPHONE
#else
CGContextRef context = (CGContextRef)bmp.GetHBITMAP();
CGContextSaveGState(context);
CGContextTranslateCTM( context, 0, m_height );
CGContextScaleCTM( context, 1, -1 );
if ( subrect )
srcRect = CGRectOffset( srcRect, -subrect->x, -subrect->y ) ;
CGImageRef image = grabViaOpenGL(kCGNullDirectDisplay, srcRect);
wxASSERT_MSG(image, wxT("wxScreenDC::GetAsBitmap - unable to get screenshot."));
CGContextDrawImage(context, srcRect, image);
CGContextRestoreGState(context);
#endif
return bmp;
}
static void AddRoundedRectToPath(CGContextRef context, CGRect rect,
float ovalWidth, float ovalHeight)
{
float fw, fh;
if (ovalWidth == 0 || ovalHeight == 0)
{
CGContextAddRect(context, rect);
return;
}
CGContextSaveGState(context);
CGContextTranslateCTM (context, CGRectGetMinX(rect),
CGRectGetMinY(rect));
CGContextScaleCTM (context, ovalWidth, ovalHeight);
fw = CGRectGetWidth (rect) / ovalWidth;
fh = CGRectGetHeight (rect) / ovalHeight;
CGContextMoveToPoint(context, fw, fh / 2);
CGContextAddArcToPoint(context, fw, fh, fw / 2, fh, 1);
CGContextAddArcToPoint(context, 0, fh, 0, fh / 2, 1);
CGContextAddArcToPoint(context, 0, 0, fw / 2, 0, 1);
CGContextAddArcToPoint(context, fw, 0, fw, fh / 2, 1);
CGContextClosePath(context);
CGContextRestoreGState(context);
}
bool GiCanvasIosImpl::createBufferBitmap(float width, float height, float scale)
{
width *= scale; // 点数宽度转为像素宽度
height *= scale;
if (width < 4 || height < 4 || width > 2049 || height > 2049) {
return false;
}
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
_buffctx = CGBitmapContextCreate(NULL, width, height, 8, width * 4,
colorSpace, kCGImageAlphaPremultipliedLast);
CGColorSpaceRelease(colorSpace);
CGContextClearRect(_buffctx, CGRectMake(0, 0, width, height));
// 坐标系改为Y朝下，原点在左上角，这样除了放大倍数为1外，其余就与 _context 坐标系一致
//if (_buffctx && _context) {
CGContextTranslateCTM(_buffctx, 0, height);
CGContextScaleCTM(_buffctx, scale, - scale);
//}
//else if (_buffctx) {
// CGContextScaleCTM(_buffctx, scale, scale);
//}
return !!_buffctx;
}
void wxOverlayImpl::Init( wxWindowDC* dc, int x , int y , int width , int height )
{
wxASSERT_MSG( !IsOk() , _("You cannot Init an overlay twice") );
m_window = dc->GetWindow();
m_x = x ;
m_y = y ;
if ( dc->IsKindOf( CLASSINFO( wxClientDC ) ))
{
wxPoint origin = m_window->GetClientAreaOrigin();
m_x += origin.x;
m_y += origin.y;
}
m_width = width ;
m_height = height ;
OSStatus err = CreateOverlayWindow();
wxASSERT_MSG( err == noErr , _("Couldn't create the overlay window") );
#ifndef __LP64__
err = QDBeginCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext);
#endif
CGContextTranslateCTM( m_overlayContext, 0, m_height );
CGContextScaleCTM( m_overlayContext, 1, -1 );
CGContextTranslateCTM( m_overlayContext, -m_x , -m_y );
wxASSERT_MSG( err == noErr , _("Couldn't init the context on the overlay window") );
}
static CGContextRef CGContextWithHDC(HDC hdc, bool hasAlpha)
{
HBITMAP bitmap = static_cast<HBITMAP>(GetCurrentObject(hdc, OBJ_BITMAP));
DIBPixelData pixelData(bitmap);
// FIXME: We can get here because we asked for a bitmap that is too big
// when we have a tiled layer and we're compositing. In that case
// bmBitsPixel will be 0. This seems to be benign, so for now we will
// exit gracefully and look at it later:
// https://bugs.webkit.org/show_bug.cgi?id=52041
// ASSERT(bitmapBits.bitsPerPixel() == 32);
if (pixelData.bitsPerPixel() != 32)
return 0;
CGBitmapInfo bitmapInfo = kCGBitmapByteOrder32Little | (hasAlpha ? kCGImageAlphaPremultipliedFirst : kCGImageAlphaNoneSkipFirst);
CGContextRef context = CGBitmapContextCreate(pixelData.buffer(), pixelData.size().width(), pixelData.size().height(), 8,
pixelData.bytesPerRow(), deviceRGBColorSpaceRef(), bitmapInfo);
// Flip coords
CGContextTranslateCTM(context, 0, pixelData.size().height());
CGContextScaleCTM(context, 1, -1);
// Put the HDC In advanced mode so it will honor affine transforms.
SetGraphicsMode(hdc, GM_ADVANCED);
return context;
}
static double Quartz_StrWidth(char *str,
R_GE_gcontext *gc,
NewDevDesc *dd)
{
QuartzDesc *xd = (QuartzDesc*)dd->deviceSpecific;
CGPoint position;
CGContextSaveGState( GetContext(xd) );
CGContextTranslateCTM( GetContext(xd), 0, 0 );
CGContextScaleCTM( GetContext(xd), -1, 1);
CGContextRotateCTM( GetContext(xd), -1.0 * 3.1416);
CGContextSetTextDrawingMode( GetContext(xd), kCGTextInvisible );
Quartz_SetFont(gc->fontfamily, gc->fontface, gc->cex, gc->ps, dd);
CGContextShowTextAtPoint( GetContext(xd), 0, 0, str, strlen(str) );
position = CGContextGetTextPosition( GetContext(xd) );
CGContextRestoreGState( GetContext(xd) );
return(position.x);
}
DragImageRef createDragImageFromImage(Image* img, ImageOrientationDescription)
{
HWndDC dc(0);
auto workingDC = adoptGDIObject(::CreateCompatibleDC(dc));
if (!workingDC)
return 0;
CGContextRef drawContext = 0;
auto hbmp = allocImage(workingDC.get(), img->size(), &drawContext);
if (!hbmp || !drawContext)
return 0;
CGImageRef srcImage = img->getCGImageRef();
CGRect rect;
rect.size = img->size();
rect.origin.x = 0;
rect.origin.y = -rect.size.height;
static const CGFloat white [] = {1.0, 1.0, 1.0, 1.0};
CGContextScaleCTM(drawContext, 1, -1);
CGContextSetFillColor(drawContext, white);
CGContextFillRect(drawContext, rect);
if (srcImage) {
CGContextSetBlendMode(drawContext, kCGBlendModeNormal);
CGContextDrawImage(drawContext, rect, srcImage);
}
CGContextRelease(drawContext);
return hbmp.leak();
}
void TileGrid::drawTileMapContents(CGContextRef context, CGRect layerBounds) const
{
CGContextSetRGBFillColor(context, 0.3, 0.3, 0.3, 1);
CGContextFillRect(context, layerBounds);
CGFloat scaleFactor = layerBounds.size.width / m_controller.bounds().width();
CGFloat contextScale = scaleFactor / m_scale;
CGContextScaleCTM(context, contextScale, contextScale);
for (TileMap::const_iterator it = m_tiles.begin(), end = m_tiles.end(); it != end; ++it) {
const TileInfo& tileInfo = it->value;
PlatformCALayer* tileLayer = tileInfo.layer.get();
CGFloat red = 1;
CGFloat green = 1;
CGFloat blue = 1;
CGFloat alpha = 1;
if (tileInfo.hasStaleContent) {
red = 0.25;
green = 0.125;
blue = 0;
} else if (m_controller.shouldAggressivelyRetainTiles() && tileInfo.cohort != VisibleTileCohort) {
red = 0.8;
green = 0.8;
blue = 0.8;
}
TileCohort newestCohort = newestTileCohort();
TileCohort oldestCohort = oldestTileCohort();
if (!m_controller.shouldAggressivelyRetainTiles() && tileInfo.cohort != VisibleTileCohort && newestCohort > oldestCohort)
alpha = 1 - (static_cast<float>((newestCohort - tileInfo.cohort)) / (newestCohort - oldestCohort));
CGContextSetRGBFillColor(context, red, green, blue, alpha);
if (tileLayer->superlayer()) {
CGContextSetLineWidth(context, 0.5 / contextScale);
CGContextSetRGBStrokeColor(context, 0, 0, 0, 1);
} else {
CGContextSetLineWidth(context, 1 / contextScale);
CGContextSetRGBStrokeColor(context, 0.2, 0.1, 0.9, 1);
}
CGRect frame = CGRectMake(tileLayer->position().x(), tileLayer->position().y(), tileLayer->bounds().size().width(), tileLayer->bounds().size().height());
CGContextFillRect(context, frame);
CGContextStrokeRect(context, frame);
CGContextSetRGBFillColor(context, 0, 0, 0, 0.5);
String repaintCount = String::number(m_tileRepaintCounts.get(tileLayer));
CGContextSaveGState(context);
tileLayer->drawTextAtPoint(context, frame.origin.x + 64, frame.origin.y + 192, CGSizeMake(3, -3), 58,
repaintCount.ascii().data(), repaintCount.length());
CGContextRestoreGState(context);
}
}
void drawRoundedRect(CGContextRef context, int x, int y){
struct CGRect cgRect;
struct CGPoint cgPoint;
cgRect.size.width = 640;
cgRect.size.height = y+30;
cgPoint.x = 0;
cgPoint.y = 5;
cgRect.origin = cgPoint;
//printf("Drawing %f, %f, %f, %f", cgPoint.x, cgPoint.y, cgRect.size.width, cgRect.size.height);
CGContextBeginPath(context);
float ovalWidth = 10;
float ovalHeight = 10;
float fw, fh;
// If the width or height of the corner oval is zero, then it reduces to a right angle,
// so instead of a rounded rectangle we have an ordinary one.
if (ovalWidth == 0 || ovalHeight == 0) {
CGContextAddRect(context, cgRect);
return;
}
// Save the context's state so that the translate and scale can be undone with a call
// to CGContextRestoreGState.
CGContextSaveGState(context);
// Translate the origin of the contex to the lower left corner of the rectangle.
CGContextTranslateCTM(context, CGRectGetMinX(cgRect), CGRectGetMinY(cgRect));
//Normalize the scale of the context so that the width and height of the arcs are 1.0
CGContextScaleCTM(context, ovalWidth, ovalHeight);
// Calculate the width and height of the rectangle in the new coordinate system.
fw = CGRectGetWidth(cgRect) / ovalWidth;
fh = CGRectGetHeight(cgRect) / ovalHeight;
// CGContextAddArcToPoint adds an arc of a circle to the context's path (creating the rounded
// corners). It also adds a line from the path's last point to the begining of the arc, making
// the sides of the rectangle.
CGContextMoveToPoint(context, fw, fh/2); // Start at lower right corner
CGContextAddArcToPoint(context, fw, fh, fw/2, fh, 1); // Top right corner
CGContextAddArcToPoint(context, 0, fh, 0, fh/2, 1); // Top left corner
CGContextAddArcToPoint(context, 0, 0, fw/2, 0, 1); // Lower left corner
CGContextAddArcToPoint(context, fw, 0, fw, fh/2, 1); // Back to lower right
// Close the path
CGContextClosePath(context);
CGContextSetRGBFillColor (context, 1, 1, 1, 0.7);
CGContextFillPath(context);
CGContextRestoreGState(context);
}
static void addRoundedRectToPath(CGContextRef context, CGRect rect,
float ovalWidth,
float ovalHeight)
{
float fw, fh;
// If either ovalWidth or ovalHeight is 0, draw a regular rectangle.
if (ovalWidth == 0 || ovalHeight == 0) {
CGContextAddRect(context, rect);
}else{
CGContextSaveGState(context);
// Translate to lower-left corner of rectangle.
CGContextTranslateCTM(context, CGRectGetMinX(rect),
CGRectGetMinY(rect));
// Scale by the oval width and height so that
// each rounded corner is 0.5 units in radius.
CGContextScaleCTM(context, ovalWidth, ovalHeight);
// Unscale the rectangle width by the amount of the X scaling.
fw = CGRectGetWidth(rect) / ovalWidth;
// Unscale the rectangle height by the amount of the Y scaling.
fh = CGRectGetHeight(rect) / ovalHeight;
// Start at the right edge of the rect, at the midpoint in Y.
CGContextMoveToPoint(context, fw, fh/2);
// Segment 1
CGContextAddArcToPoint(context, fw, fh, fw/2, fh, 0.5);
// Segment 2
CGContextAddArcToPoint(context, 0, fh, 0, fh/2, 0.5);
// Segment 3
CGContextAddArcToPoint(context, 0, 0, fw/2, 0, 0.5);
// Segment 4
CGContextAddArcToPoint(context, fw, 0, fw, fh/2, 0.5);
// Closing the path adds the last segment.
CGContextClosePath(context);
CGContextRestoreGState(context);
}
}
wxMetafileRefData::wxMetafileRefData( int width, int height)
{
Init();
m_width = width;
m_height = height;
CGRect r = CGRectMake( 0 , 0 , width , height );
CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0);
m_data.reset(data);
CGDataConsumerRef dataConsumer = wxMacCGDataConsumerCreateWithCFData(data);
m_context = CGPDFContextCreate( dataConsumer, (width != 0 && height != 0) ? &r : NULL , NULL );
CGDataConsumerRelease( dataConsumer );
if ( m_context )
{
CGPDFContextBeginPage(m_context, NULL);
CGColorSpaceRef genericColorSpace = wxMacGetGenericRGBColorSpace();
CGContextSetFillColorSpace( m_context, genericColorSpace );
CGContextSetStrokeColorSpace( m_context, genericColorSpace );
CGContextTranslateCTM( m_context , 0 , height ) ;
CGContextScaleCTM( m_context , 1 , -1 ) ;
}
}
GPrintDC::GPrintDC(void *Handle, const char *PrintJobName, const char *PrinterName) :
GScreenDC((GPrintDcParams*)Handle)
{
d = new GPrintDCPrivate;
d->PrintJobName = PrintJobName;
d->PrinterName = PrinterName;
GPrintDcParams *Params = (GPrintDcParams*)Handle;
if (Params)
{
int x = Params->Page.right - Params->Page.left;
int y = Params->Page.bottom - Params->Page.top;
d->Dpi.x = Params->Dpi.hRes;
d->Dpi.y = Params->Dpi.vRes;
#if 0
d->x = x * d->Dpi.x;
d->y = y * d->Dpi.y;
#else
d->x = x;
d->y = y;
#endif
d->Ctx = Params->Ctx;
// Invert the co-ordinate space so 0,0 is the top left corner.
CGContextTranslateCTM(d->Ctx, 0, y);
CGContextScaleCTM(d->Ctx, 1.0, -1.0);
}
}
void GraphicsContext::scale(const FloatSize& size)
{
if (paintingDisabled())
return;
CGContextScaleCTM(platformContext(), size.width(), size.height());
m_data->scale(size);
m_data->m_userToDeviceTransformKnownToBeIdentity = false;
}
